hmmm.... interesting theory. to be honest, i have no idea. but my guess is that it would be the same amount.
i mean, say your body metabolizes x amount of thc every hour you sleep. so if you take three three hour naps you'd burn 9x thc. or if you slept for 9 hours straight oyu'd burn 9x thc.
maybe that's crazy talk. i like the theory though. i wonder if anyone else has any more insight.